JP7086465B2 - Blank sheet for portable packaging box and portable packaging box - Google Patents

Description

The present invention relates to a portable packaging box and a blank sheet of a portable packaging box.

As a material for packing articles to be delivered, a wide variety of packaging boxes such as those having a structure that is easy to assemble as disclosed in Patent Document 1 have been developed. In recent years, with the expansion of mail-order sales such as online shopping, packed products have been delivered to places convenient for purchasers, such as delivery boxes installed in public places such as convenience stores and stations. The delivery form that the purchaser takes home from the mail order is spreading. Some of the delivered products have a heavy load, and considering the convenience of carrying them to the final destination, it is desirable that the packaging box is provided with a hand-held part and can be carried by one hand. As such a packaging box for hand-carrying, a box having a rectangular parallelepiped shape without unevenness during transportation by a trader and having a hand-held portion formed on the packaging box when carrying by hand has been developed (for example, the following patent documents). 1, 2).

The packaging box described in Patent Document 1 or 2 has a side plate portion forming a square cylinder, and a top plate flap and a bottom plate flap for closing the opening of the square cylinder. Further, the packaging box has a handle piece that forms an opening in the side plate portion. Further, in these packaging boxes, a folded portion is formed in a part of the top plate portion, and the folded portion is bent with respect to the top plate to provide a reinforcing plate for supporting and reinforcing the handle piece.

Jitsukosho 46-16629 Gazette Jitsufuku No. 7-9780 Gazette

In the conventional packaging boxes such as Patent Documents 1 and 2, it is troublesome to form a reinforcing plate, which is inconvenient for a user who uses a blank sheet as a packaging box to store products and the like.
That is, in the packaging box described in Patent Document 1, at the time of box making, the reinforcing piece had to be bent with respect to the top plate, and then the tip of the reinforcing plate had to be adhered to the lower surface of the top plate. Further, in the packaging box described in Patent Document 2, the reinforcing plate must be bent in a state where the top plate flap is bent to cover the opening of the tubular body, and the support convex piece connected to the reinforcing plate must be brought into close contact with the side plate. , It was difficult to make that state.
Therefore, the present invention provides a blank sheet of a portable packaging box and a portable packaging box in which a handle portion can be easily formed.

The portable packaging box of the present invention includes a side plate portion forming a cylinder, a top plate portion that closes one opening of the cylinder, and a bottom portion that closes the other opening of the cylinder, and the side plate. A first U-shaped portion that is freely raised and formed by forming a notch and a crease is formed in the portion, and the inner surface of the first U-shaped portion is overlapped with at least a part of the first U-shaped portion. The first U-shaped portion is provided with a sticking tip portion that is attached to the first U-shaped portion and is bent at a position along the tip edge of the first U-shaped portion. An inverted U-shape is formed with respect to the U-shaped portion, and with the rise of the first U-shaped portion, the hole formed by the rise of the first U-shaped portion is moved to the outer surface side of the side plate portion. The third U-shaped portion to be pulled out is connected, and the third U-shaped portion has a locking portion that locks to the peripheral wall portion of the first side plate portion forming the hole portion, and is caused by the above-mentioned triggering. The first U-shaped portion and the third U-shaped portion serve as handles.
According to this configuration, the third U-shaped portion can be pulled out with the raising of the first U-shaped portion to form a handle.

The tubular body of the carrying packaging box of the present invention has the side plate portions connected in one direction through creases, and the first U-shaped portion is located at one end in the one direction. A bonding allowance is connected to the side plate portion formed on the side plate portion and located at the other end with respect to one end in one direction via a crease, and the attachment tip portion connects the end edges of the side plate portions to each other. Even if the second U-shaped portion is formed to have the same shape as or smaller than the first U-shaped portion as a part of the joining margin to be attached to the inside of the side plate portion in order to form a tubular body. good.
According to this configuration, since the bonding tip portion is used as a part of the joining margin, it is possible to easily manufacture a portable packaging box and to reinforce the first U-shaped portion.

The tip edge of the first U-shaped portion forming the apex when the first U-shaped portion of the carrying packaging box of the present invention is raised is the width of the base end portion of the first U-shaped portion. It is cut out wider than the dimension, and the width dimension of the base end portion of the third U-shaped portion is larger than the width dimension of the base end portion of the first U-shaped portion and the first U-shaped portion. It may be formed smaller than the width dimension of the tip edge of.
According to this configuration, when the third U-shaped portion is pulled out, it is prevented that the third U-shaped portion is inadvertently swayed in the hole formed when the first U-shaped portion is raised. can do.

The locking portion of the portable packaging box of the present invention may have an auxiliary locking piece that locks to the peripheral wall portion by surface contact.
According to this configuration, the third U-shaped portion can be reliably locked to the peripheral wall portion.

The first U-shaped portion of the portable packaging box of the present invention has a crease formed parallel to the tip edge thereof near the base end line of the first U-shaped portion, and the first from both ends of the crease. A push piece formed by a notch connected on the proximal edge after extending parallel to the proximal edge of the U-shaped portion of the U-shaped portion is provided inside the first U-shaped portion, and the third U-shaped portion is provided. The U-shaped portion is a crease formed on the base end side parallel to the tip edge thereof, and a locking portion after extending from both ends of the crease toward the base end portion of the third U-shaped portion. The indentation piece formed by the notch connected on the boundary line of the above may be provided inside the third U-shaped portion.
According to this configuration, the push-in piece facilitates gripping the handle.

The blank sheet of the portable packaging box of the present invention forms the portable packaging box according to any one of the above.
According to this configuration, any of the above effects is exhibited.

The blank sheet of the portable packaging box and the portable packaging box of the present invention have an effect that the handle portion can be easily formed only by raising a part of the side plate portion.

It is a perspective view which showed the carrying packaging box which concerns on one Embodiment of this invention. It is a developed view which looked at the blank sheet which concerns on one Embodiment of this invention from the outside. It is a perspective view which showed the use method of the carrying packaging box which concerns on one Embodiment of this invention. It is a side view which showed the formation state of the carrying packaging box which concerns on one Embodiment of this invention. It is a front view which showed the state before the box-making of the blank sheet which concerns on one Embodiment of this invention. It is sectional drawing which showed the formation state of the handle of the carrying packaging box which concerns on one Embodiment of this invention. It is a front view which showed the modification of the blank sheet of the carrying packaging box which concerns on one Embodiment of this invention. It is a front view which showed the modification of the blank sheet of the carrying packaging box which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the packaging box of the present invention will be described with reference to the drawings. The dimensions of each part of the figure used in the following description are not always the same as the actual ones, and can be changed as appropriate. In the present embodiment, each part of the present invention may be referred to as an upper side, a lower side, a side side, etc., but these are relative to each part when the blank sheet or the packaging box is viewed with the bottom as the lower surface, unless otherwise specified. This is to show the positional relationship, and does not necessarily determine the orientation of the packaging box.

As shown in FIG. 1, the portable packaging box X according to the first embodiment of the present invention has a tubular body 6 formed by connecting a plurality of side plate portions 2, 3, 4, and 5, and a tubular body 6. It is provided with top plate flaps 8, 9, 10, 11 for closing one opening 7, and a so-called bottom 13 for closing the other opening 12 of the tubular body 6. The top plate flap 8-11 constitutes a top plate portion that closes the opening 7 as a whole.

FIG. 2 is a view of the blank sheet (hereinafter referred to as “blank sheet”) 1 of the packaging box X as viewed from the outside. As shown in FIG. 2, the plurality of side plate portions are composed of a first side plate portion 2, a second side plate portion 3, a third side plate portion 4, and a fourth side plate portion 5, and a substantially rectangular parallelepiped tubular body 6 shown in FIG. Can be formed. As shown in FIG. 2, the side plate portions are connected to each other at the side side 6a which is a crease between the side plates and are arranged in one direction.

The first side plate portion 2 and the third side plate portion 4 are formed in a rectangular shape having substantially the same dimension in the extending direction of the side side 6a and the dimension in the upper side 6b or lower side 6c orthogonal to the dimension. The second side plate portion 3 and the fourth side plate portion 5 are formed in a rectangular shape having substantially the same dimensions in the direction of the side side 6a and the direction of the upper side 6d or the lower side 6e orthogonal to the side side 6a.

The first side plate portion 2 is formed with a first U-shaped portion 20 that is freely raised by forming a notch and a crease.
The first U-shaped portion 20 has a predetermined outer edge 20a formed in a substantially rectangular shape and an inner edge 20b forming an opening for inserting a hand at a position inside a predetermined dimension from the outer edge 20a. It is a portion on one side of a handle 15 (see FIG. 6) formed in a U shape having a width dimension.

The outer edge 20a is formed along the upper edge 6b and the lower edge 6b from both ends of the trigger baseline 21 formed in parallel with the edge 2a at a position closer to the edge 2a of the first side plate portion 2. It is formed by the outer rising sides 22 and 22 extending from the outside and the apex 23 connecting both ends of the outer rising sides 22 and 22.
The raising base end line 21 is a crease that becomes a connecting portion with a peripheral wall portion 27 other than the first U-shaped portion 20 when the first U-shaped portion 20 is raised.

The top edge (tip edge) 23 of the first U-shaped portion 20 is cut out wider than the width dimension of the base end portion of the first U-shaped portion 20. In other words, the corner portion formed by the outer rising side 22 and the apex 23 protrudes in the direction of both ends of the apex 23, and is larger than between the linear outer rising sides 22 and 22 (the portion including the base end portion). The overhanging portions 24, 24 are notched on the outside.
The central portion of the top side 23 forms a finger hook portion 25 slightly protruding in the side side 6a direction.
The outer rising side 22 and the top side 23 are continuous substantially U-shaped cuts.

Between the top side 23 and the side side 6a, the outer rising side 22 and the upper side 6b, the outer rising side 22 and the lower side 6c, and between the base end line 21 and the end edge 2a, the first U-shaped portion 20 is caused. At that time, it is a peripheral wall portion 27 that surrounds the hole portion 26.
Two notches 23t and 23t perpendicular to the apex 23 extend from the apex 23, and the tips of the two notches 23t and 23t are connected by a crease 23y to the peripheral wall portion 27 adjacent to the finger hook portion 25. The push-in portion 28 is located between the two notches 23t and 23t.

The inner edge 20b includes an inner tip edge 29 extending on the raised base line 21, inner rising edges 30 and 30 extending from both ends of the inner tip edge 29 toward the apex 23, and tips of the inner rising edges 30 and 30. It is formed by an inner base line 31 extending between them. The inner tip edge 29 and the inner rising sides 30 and 30 are continuous cuts. The inner base end line 31 is a crease. The push-in piece 32 is formed by being surrounded by the inner tip edge 29 and the inner rising sides 30 and 30 forming the notch and the inner base end line 31 forming the crease.

From each of the above sides, the outer rising sides 22 and 22 and the inner rising sides 30 and 30 form the rising wall portions 40 and 40 corresponding to the straight portions extending substantially parallel to the U-shape. Further, the inner base end line 31 of the push-in piece 32 and the apex 23 form a handle portion 41 connecting a substantially parallel straight line portion of a U-shape.
As shown in FIG. 3, the first U-shaped portion 20 raises the first U-shaped portion 20 to the outside of the cylinder 6 along the notch of the outer end edge 20a with the raising base end line 21 as the axis. The hole 26 is formed in the first side plate portion 2 after being started up.

Further, as shown in FIG. 2, the push-in piece 32 is placed along the inner tip edge 29 of the inner end edge 20b and the inner rising sides 30 and 30 with the inner base end line 31 of the push-in piece 32 of the inner end edge 20b as an axis. The U-shaped portion 20 of 1 can be pushed in the direction opposite to the raising direction to form an opening 35 into which a hand can be inserted.
By raising the first U-shaped portion 20 and then pushing the push-in piece 32 in this way, one piece of the handle 15 shown in FIG. 6 can be formed. Note that FIG. 6 is a vertical cross-sectional view of the packaging box X having the handle 15 formed along the opening edge of the hole 26 corresponding to the outer rising side 22 shown in FIG.

The joining allowance 45 that connects the side plate portions to form the tubular body 6 is connected to the side side 5a of the fourth side plate portion 5 located at the other end with respect to the first side plate portion 2 located at one end connected in one direction. ing.
The joining allowance 45 is a portion that is attached to the inner surface of the first side plate portion 2 (the back surface side in FIG. 1) to connect the first side plate portion 2 to the fourth side plate portion 5 to the tubular body 6 shown in FIG. It has a sticking base 46 and a second U-shaped portion (sticking tip) 47 connected to the tip edge of the sticking base 46.

The attachment base portion 46 is a portion that is overlapped with the peripheral wall portion 27 of the first U-shaped portion 20 and is attached to the first side plate portion 2, and extends in a direction orthogonal to the side side 5a with the side side 5a as the base end. ing.
In the present embodiment, the sticking base portion 46 has a strip-shaped portion 49A up to the raised base end line 48 provided parallel to the side side 5a at a certain interval from the side side 5a, and both ends of the strip-shaped portion 49A. It is provided with a reinforcing portion 49B extending in a substantially trapezoidal shape in a direction orthogonal to the side side 5a.

The distance from the side side 5a to the raised base line 48 of the second U-shaped portion 47 is approximately the same as the dimension of the edge 2a of the first side plate portion 2 and the raised base line 21 of the first U-shaped portion 20. It is set to match.
The sticking base portion 46 is stuck between at least the end edge 2a of the first side plate portion 2 and the raising base end line 21.

The second U-shaped portion 47 is a portion that overlaps with the first U-shaped portion 20 when the joining allowance 45 is overlapped with the inner surface of the first side plate portion 2, and is exactly the same as the first U-shaped portion 20. Or has a small U-shape. Specifically, the second U-shaped portion 47 has a substantially rectangular outer edge 47a that is the same as or smaller than the outer edge 20a of the first U-shaped portion 20, and the first U. It is formed by a substantially rectangular opening 51 corresponding to the inner edge 20b of the character portion 20.

The outer edge 47a of the second U-shaped portion 47 raises between the outer rising side 50 extending substantially vertically from both ends of the raised base line 48 and the tips of the outer rising sides 50, 50 and is substantially parallel to the base end line 48. It is formed by an apex 52 extending to. The distance between the raised base line 48 and the apex 52 of the second U-shaped portion 47 is slightly smaller than the distance between the raised base line 21 and the apex 23 of the first U-shaped portion 20, and the second The outer rising sides 50 and 50 of the U-shaped portion 47 are formed to be slightly smaller than the outer rising sides 22 and 22 of the first U-shaped portion 20.

The opening 51 of the second U-shaped portion 47 is formed from the long side 51a formed substantially parallel to the side side 5a at a position slightly closer to the side side 5a than the raising base end line 48, and from both ends of the long side 51a. It is formed in a substantially rectangular shape by being surrounded by short sides 51b and 51b extending toward the top 52 of the second U-shaped portion 47 and long sides 51a extending between the tips of the short sides 51b and 51b. The long side 51a and the short side 51b are each formed slightly larger than the inner edge 20b of the first U-shaped portion 20. As a result, the opening 51 surrounds the push-in piece 32 when the second U-shaped portion 47 is overlapped with the first U-shaped portion 20.

The second U-shaped portion 47 is caused by the outer edge 47a of the rectangle and the opening 51 is punched out on the base end line 48 side. It is in the shape of.

Further, the outer edge 47a and the opening 51 of the second U-shaped portion 47 have a positional relationship with the extension lines of the side side 5a, the upper side 6d, and the lower side 6e, and the positional relationship with the extension lines of the first U-shaped portion 20 is the outer end edge 20a of the first U-shaped portion 20. It is formed so as to have the same positional relationship between the inner edge 20b and the edge 2a, the upper side 6b, and the lower side 6c. That is, when the first U The second U-shaped portion 47 is adapted to fit on the inner surface of the character portion 20 so as to substantially coincide with each other.

The third U-shaped portion 55 is formed on the outer surface side of the first side plate portion 2 from the hole portion 26 formed in the first side plate portion 2 by raising the first U-shaped portion 20 and the second U-shaped portion 47. It is a part that is pulled out to form another piece of the handle 15 shown in FIG.
The third U-shaped portion 55 has an inverted U-shape with respect to the second U-shaped portion 47 with the apex 52 of the second U-shaped portion 47 interposed therebetween, and is slightly larger than the second U-shaped portion 47. It is an extension portion of the widely formed joint allowance 45, and has a locking portion 56 that locks to the peripheral wall portion 27 of the hole portion 26 when it is raised.

The third U-shaped portion 55 corresponds to a substantially rectangular outer edge 55a slightly larger than the outer edge 20a of the first U-shaped portion 20 and an inner edge 20b of the first U-shaped portion 20. It is formed by the inner edge 55b of a substantially rectangular shape.
The outer edge 55a of the third U-shaped portion 55 extends from both ends of the apex 52 shared with the second U-shaped portion 47 in a direction slightly expanding with respect to the apex 52. Later, it is surrounded by an outer rising side 60 extending substantially perpendicular to the apex 52 and a locking side 61 extending between the tips of the outer rising sides 60 and 60.

The dimension between the outer rising sides 60, 60 of the third U-shaped portion 55 is larger than the dimension between the outer rising sides 22, 22 including the base end portion of the first U-shaped portion 20, and the overhanging portions 24, 24 It is formed smaller than the dimension between them.

The inner end edge 55b of the third U-shaped portion 55 is a base end line 62 of a push piece parallel to the apex 52 formed near the apex 52, and a third U-shaped portion from both ends of the base end line 62. It is formed by a substantially “[” type punching 64 extending on the locking side 61 of 55 and connecting the tips thereof. The base end line 62 and the punching 64 of these push-in pieces form a push-in piece 63 smaller than the push-in piece 32 of the first U-shaped portion 20. The locking side 61 is a triggering base end line of the third U-shaped portion 55.

The third U-shaped portion 55 has a locking portion 56 formed wider than between the outer rising sides 60 and 60 of the third U-shaped portion 55 with the locking side 61 interposed therebetween.
The locking portion 56 is formed in a substantially strip shape with the extending direction of the locking side 61 as the longitudinal direction, and auxiliary locking pieces 65 projecting toward the side sides 5a are formed at both ends thereof.

A second top plate flap 9 formed in a trapezoidal shape with a slightly dented tip is connected to the upper side 6d of the second side plate portion 3 so as to close substantially the entire opening 7 shown in FIG.
A fourth top plate flap 11 formed in a substantially rectangular shape so as to cover the second side plate portion 3 and close the entire opening 7 is connected to the upper side 6d of the fourth side plate portion 5.

At the substantially central portion of the fourth top plate flap 11 in the extending direction, a broken portion is created, the opening 7 is closed by the fourth top plate flap 11, and then the fourth top plate flap 11 is opened by breaking. 66 is formed by two breaking lines 66a and 66a. At the tip of the fourth top plate flap 11, an insertion piece 68 to be inserted into the insertion slit 67 formed on the upper side 6d to which the second top plate flap 9 is connected is formed. The insertion piece 68 is formed in an arc shape in which the center in the width direction protrudes.

The upper side 6b of the first side plate portion 2 is provided with a substantially rectangular first top plate flap 8 having a short extension dimension and covering a little less than half of one opening 7 of the tubular body 6 shown in FIG. There is.
A substantially rectangular third top plate flap 10 having a short extension dimension and covering a little less than half of one opening 7 of the cylinder 6 shown in FIG. 1 is connected to the upper side 6b of the third side plate portion 4. There is.

As shown in FIG. 2, the bottom portion 13 shown in FIG. 4 includes first-fourth bottom plate flaps 71-74 connected to the lower sides 6c and 6e of the first-fourth side plate portions 2-5, respectively, and has a hellish bottom. Forming (American rock bottom).
The first bottom flap 71 and the third bottom flap 73 are flaps that close the opening 12 shown in FIG. 4 by abutting the tips from the opposite lower sides 6c and 6c of the bottom portion 13, and have a substantially R shape or an R shape, respectively. The shape is inverted left and right.
The second bottom flap 72 is a substantially concave flap.
The fourth bottom flap 74 is a substantially convex flap whose tip slightly bulges in a direction parallel to the lower side.

Next, a method of folding the blank sheet 1 into a state before box making will be described. Note that FIG. 5 is a plan view in which the blank sheet 1 shown in FIG. 2 is turned upside down and folded so that the first side plate portion 2 can be seen on the upper side (front side in FIG. 5).
In order to fold the blank sheet 1 into the state before box making, as shown in FIG. 5, the joining allowance 45 shown in FIG. 2 is overlapped on the inner surface of the fourth side plate portion 5 on the side side 5a, and the strip-shaped portion 49A and the first The adhesive is arranged along the apex 52 of the U-shaped portion 47 of 2.

Then, on the side 6a between the second side plate portion 3 and the third side plate portion 4, the first side plate portion 2 and the second side plate portion 3 are placed on the inner surface of the fourth side plate portion 5 and the inner surface of the third side plate portion 4. Overlay on top. Then, the adhesive base portion 46 is bonded and bonded between the edge 2a of the first side plate portion 2 and the rising base end line 21 by the adhesive applied to the outer surface of the bonding margin 45. Further, a straight portion along the apex 52 of the second U-shaped portion 47 is attached to the straight portion along the apex 23 of the first U-shaped portion 20.

As a result, the blank sheet 1 shown in FIG. 5 is completed, in which the first to fourth side plate portions 2-5 are folded flat so that the tubular body 6 shown in FIG. 1 can be formed.

In order to turn the flatly folded blank sheet 1 before box making into a three-dimensional packaging box X, the side sides 2a, 5a and the side sides 6a which are the folds of the folded blank sheet 1 shown in FIG. 5 are used. The cylinder 6 is made three-dimensional so as to be close to each other. As shown in FIG. 4, the bottom portion 13 is formed by bending the first bottom flap 71 and the third bottom flap 73 to cover the opening 12, closing the second bottom flap 72, and finally the protrusion at the tip of the fourth bottom flap 74. Is inserted into the recessed part of the second bottom flap and assembled.
As a result, as shown in FIGS. 1 and 4, the packaging box X has the opening 7 opened.

The article is accommodated through the opening 7, the first top plate flap 8 and the third top plate flap 10 are closed, and then the second top plate flap 9 is closed. Further, the fourth top plate flap 11 is closed, and the insertion piece 68 is inserted into the insertion slit 67.
As a result, the packaging box X is a rectangular parallelepiped and easy to stack.

When carrying the packaging box X by hand, as shown in FIG. 3, a gap is formed by pushing the pushing portion 28 into the cylinder body 6, and a finger is hooked on the finger hook portion 25 of the first U-shaped portion 20. Then, the first U-shaped portion 20 and the second U-shaped portion 47 are caused and caused while rotating with the base end line 21 as the rotation axis. Then, the first U-shaped portion 20 and the second U-shaped portion 47 rise up in an inclined posture, and the hole portion 26 is formed after the first U-shaped portion 20.

The third U-shaped portion 55 is pulled to the apex 52 of the second U-shaped portion 47 as the second U-shaped portion 47 is raised, and is pulled out from the hole portion 26. Since the third U-shaped portion 55 is formed wider than the outer rising sides 22 and 22 shown in FIG. 2 of the first U-shaped portion 20, it is pulled out through the overhanging portions 24 and 24 of the hole portion 26. Is done. As shown in FIG. 6, when the locking side 61 of the third U-shaped portion 55 reaches the overhanging portion 24 shown in FIG. 3, the locking side 61 of the locking portion 56 and the auxiliary locking piece 65 are formed in the hole portion 26. It is locked to the peripheral wall portion 27.

In this state, the first U-shaped portion 20, the second U-shaped portion 47, and the third U-shaped portion 55 are pulled out to the maximum, so that the push-in piece 32 of the first U-shaped portion 20 is reached. Is pushed toward the third U-shaped portion 55, and the pushing piece 63 of the third U-shaped portion 55 is pushed toward the first U-shaped portion 20. This completes the formation of the handle 15.

As described above, according to the portable packaging box of the present invention, only the first U-shaped portion 20 and the second U-shaped portion 47 are caused to the outer surface side of the first side plate portion 2, and the third U-shaped portion is formed. 55 is pulled out and the locking portion 56 is locked to the inner surface of the first side plate portion 2, so that the handle 15 is formed very easily.
Further, the handle 15 of the carrying packaging box X protrudes in a chevron shape from the first side plate portion 2, and forms a base end portion and a hole portion 26 of the handle 15 when an object that is easy to grip and has a large load is accommodated. It has the effect that the load applied to the peripheral wall portion 27 can be dispersed and stably held.

Further, overhanging portions 24 are formed at both ends of the hole portion 26 on the top side 23 side, and the width dimension of the third U-shaped portion 55 is larger than the width dimension of the first U-shaped portion 20, and the overhanging portions 24, 24. It is formed smaller than the dimension between them. Therefore, in the carrying packaging box X, when the third U-shaped portion 55 is pulled out from the overhanging portion 24, the third U-shaped portion 55 collapses toward the first U-shaped portion 20 in the hole 26. , It can be locked in the overhanging portions 24, 24 so as not to move carelessly in the hole portion 26. Therefore, the handle 15 can be gripped more easily and stably.

Further, the locking portion 56 is provided with auxiliary locking pieces 65 and 65, and when the third U-shaped portion 55 is maximally pulled out from the hole portion 26, the surface of the auxiliary locking piece 65 is exposed. Since the third U-shaped portion 55 can come into surface contact with the inner surface of the first side plate portion 2, even if the third U-shaped portion 55 is pulled to the outside of the first side plate portion 2, the locked state is firmly maintained. Therefore, when a heavy object is put in the cylinder 6 and the handle 15 is held, it is possible to prevent the third U-shaped portion 55 from coming out of the hole portion 26.

In the above embodiment, as shown in FIG. 2, the case where the protrusion of the reinforcing portion 49B of the bonding base portion 46 of the bonding margin 45 is reduced is illustrated, but the protrusion of the reinforcing portion 49B is as shown in FIG. In addition, the dimensions may be set to be the same as the dimensions of the lower side 6c of the first side plate portion 2 or the third side plate portion 4.
When the protrusion of the reinforcing portion 49B is provided so large, the area bonded to the peripheral wall portion 27 of the hole portion 26 of the first side plate portion 2 becomes large, and the rigidity of the peripheral wall portion 27 can be increased.
Further, although the bottom 13 of the above embodiment illustrates the case where the hell bottom is adopted, a so-called one-touch bottom as shown in FIG. 7 can also be adopted as long as the dimensional relationship is suitable.

Further, the bonding tip portion 47 does not have to be a part of the joining allowance 45, and as shown in FIG. 8, for example, at least a part of the first U-shaped portion 20 separated from the joining allowance 45 (for example, a handle). It may be laminated in advance on the inner surface of the portion 41 and the third U-shaped portion 55 may be connected to the tip edge thereof. Even with such a configuration of the pasted tip portion 47, the third portion may be attached. The U-shaped portion 55 of the above can be pulled out from the hole portion 26 with the start-up of the first U-shaped portion 20, and the same actions and effects as those of the above embodiment can be obtained.

Further, the structure of the handle 15 of the present invention is not limited to the tubular body 6 composed of four side plate portions, but can also be applied to the tubular body 6 having a pentagonal or larger plan view.
In this case, the first U-shaped portion 20 is formed on the side plate portion on one end side in which the side plate portions are connected in one direction across the crease. Further, in the direction of the first U-shaped portion 20, the tip of the U-shaped straight line extending parallel to each other of the U-shaped portion, in other words, the start end and the end of the U-shaped portion, is directed toward the end edge side of the side plate portion, and FIG. 2 of the handle 15. The handle portion 41 shown in 1 is directed in the direction in which the side plate portions are connected.

Further, the joining allowance 45 or the second U-shaped portion 47 and the third U-shaped portion 55 are formed on the side plate portion on the other end side in which the side plate portions are connected in one direction with the creases interposed therebetween. The direction of the second U-shaped portion 47 is such that the tip of the U-shaped straight line extending parallel to each other of the U-shape is directed to the crease side between the joining allowance 45 and the side plate portion, and the handle portion 41 is directed to the opposite side. The third U-shaped portion 55 may be formed so as to be substantially line-symmetrical with the second U-shaped portion 47 so that the apex 52 of the second U-shaped portion 47 is common.

As described above, even if the present invention is applied to the side plate portion of a cylinder having a pentagon or more in a plan view, the same actions and effects as those obtained in the above embodiment can be obtained.

1 Blank sheet 2-5 Side plate 2a, 5a Edge 6 Cylinder 7 Opening 12 Opening 13 Bottom 15 Handle
20 1st U-shaped part 23 Top edge (tip edge of 1st U-shaped part)
26 Hole 27 Peripheral wall 32 Pushing piece 63 Pushing piece 47 Sticking tip, 2nd U-shaped part 55 3rd U-shaped part 56 Locking part 61 Locking side 65 Auxiliary locking piece X Packaging box

Claims (6)

It is provided with a side plate portion forming a cylinder, a top plate portion that closes one opening of the cylinder, and a bottom portion that closes the other opening of the cylinder.
A first U-shaped portion that is freely raised by forming a notch and a crease is formed in the side plate portion.
A sticking tip portion which is overlapped with at least a part of the first U-shaped portion and bonded to the inner surface of the first U-shaped portion and is raised together with the first U-shaped portion is provided.
The sticking tip portion is bent at a position along the tip edge of the first U-shaped portion to form an inverted U-shape with respect to the first U-shaped portion, and the first U-shaped portion is raised. Along with this, a third U-shaped portion drawn out from the hole formed by the rise of the first U-shaped portion to the outer surface side of the side plate portion is connected.
The third U-shaped portion has a locking portion for locking to the peripheral wall portion of the first side plate portion forming the hole portion.
A portable packaging box in which the first U-shaped portion and the third U-shaped portion serve as handles due to the above-mentioned triggering. The tubular body has the side plate portion connected to four or more in one direction via a crease.
The first U-shaped portion is formed on the side plate portion located at one end in the one direction.
A joint margin is connected to the side plate portion located at the other end with respect to one end in one direction through a crease, and the attachment tip portion is a side plate for connecting the end edges of the side plate portions to form a cylinder. The portable use according to claim 1, wherein the second U-shaped portion is formed in the same shape as or smaller than the first U-shaped portion as a part of the joining margin to be attached to the inside of the portion. Packaging box. The tip edge of the first U-shaped portion forming the apex when the first U-shaped portion is raised is cut out wider than the width dimension of the base end portion of the first U-shaped portion. ,
The width dimension of the portion of the third U-shaped portion pulled out from the hole portion is larger than the width dimension of the base end portion of the first U-shaped portion and the width of the tip edge of the first U-shaped portion. The portable packaging box according to claim 1 or 2, which is formed smaller than the dimensions. The portable packaging box according to any one of claims 1 to 3, wherein the locking portion has an auxiliary locking piece that locks to the peripheral wall portion by surface contact. The first U-shaped portion has a crease formed parallel to the tip edge thereof near the proximal end line of the first U-shaped portion, and the proximal end line of the first U-shaped portion from both ends of the crease. A push-in piece formed by a notch connected on the proximal line after extending in parallel toward the first U-shaped portion is provided inside the first U-shaped portion.
The third U-shaped portion is parallel to the side that becomes the apex when pulled out from the hole portion, and the locking side that is the triggering base end line of the apex and the third U-shaped portion. A push piece formed by a crease formed between the creases and a notch extending from both ends of the crease toward the locking side and then connected on the locking side is formed in the third U-shaped portion. The portable packaging box according to any one of claims 1 to 4 which is held inside. A blank sheet forming the portable packaging box according to any one of claims 1 to 5.

Images